html,body{
  width: 100%;
  height: 100%;
  overflow: hidden;
  box-sizing: border-box;
}
.pro-webBro{
  width: 100%;
  height: 100%;
  overflow: scroll;
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
  text-indent: 24px;
}
.pro-webBro-p1{
  font-weight: 600;
}
h1{
  text-align: center;
  font-size: 30px;
  font-weight: 600;
  margin: 20px 0 30px;
}
p,h2{
  line-height: 36px;
  width: 95%;
  margin: 0 auto;
  text-indent: 24px;
}
h2{
  margin-top: 50px; 
}
.pro-webBro>p:last-child{
  margin-bottom: 20px;
}